#2F3F9A#2F3F9A

#2F3F9A is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.2% C 0.149 H 270.8°. Best body text is #FFFFFF at 9.14:1 contrast (WCAG AA passes).

Color values

HEX	#2F3F9A
RGB	rgb(47, 63, 154)
HSL	hsl(231, 53%, 39%)
HSV	hsv(231, 69%, 60%)
CMYK	cmyk(69.5%, 59.1%, 0%, 39.6%)
CIE-LAB	lab(30.62, 25.08, -51.69)
CIE-LCH	lch(30.62, 57.46, 295.88°)
OKLab	oklab(41.16% 0.0021 -0.1489)
OKLCH	oklch(41.16% 0.149 270.8)
XYZ	xyz(8.7806, 6.4916, 31.3559)
Luminance	0.0649 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2F3F9A #9A8A2F

analogous

#2F759A #2F3F9A #552F9A

triadic

#2F3F9A #9A2F3F #3F9A2F

tetradic

#2F3F9A #9A2F75 #9A8A2F #2F9A55

square

#2F3F9A #9A2F75 #9A8A2F #2F9A55

split-complementary

#2F3F9A #9A552F #759A2F

monochromatic

#12193C #212C6B #2F3F9A #4155C5 #707FD3

Accessibility & contrast

On white

9.14

#2F3F9A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#2F3F9A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2F3F9A

9.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2F3F9A	#FFFFFF	#000000	##FFFFFF
##2F3F9A	1.00	9.14	2.30	9.14
#FFFFFF	9.14	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004D9D

Deuteranopia (green-blind)

#004398

Tritanopia (blue-blind)

#005566

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #2f3f9a;
/* rgb */ color: rgb(47, 63, 154);
/* oklch */ color: oklch(41.2% 0.149 270.8);

Tailwind

colors: {
  custom: {
    50: '#7573b8',
    500: '#2f3f9a',
    950: '#000000',
  },
}

SCSS

$custom: #2f3f9a;
$custom-light: #7573b8;
$custom-dark: #000000;

JSON

{
  "hex": "#2f3f9a",
  "rgb": {
    "r": 47,
    "g": 63,
    "b": 154
  },
  "hsl": {
    "h": 231.028,
    "s": 53.234,
    "l": 39.412
  },
  "oklch": {
    "l": 0.41161,
    "c": 0.14894,
    "h": 270.8
  },
  "luminance": 0.06492
}

Semantic roles & 50–950 ramp

primary

#2F3F9A

secondary

#BBAF6A

accent

#C74BDD

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#090811

muted

#7B7B80

Preview Lab

Preview with #2F3F9A

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →